CMC FP6000

KimaCell® CMC FP6000 sodium carboxymethyl cellulose is made through carboxymethylation. Carboxymethyl cellulose belongs to cellulose ether, which is a loose white or yellowish powder, odorless, tasteless, non-toxic, and easily soluble in water. Pure carboxymethyl cellulose has no practical value, but its sodium salt is actually used to thicken and protect colloid. The production method of carboxymethyl cellulose is to react cellulose with sodium hydroxide to produce alkali cellulose, and then use monochloroacetic acid for carboxymethylation. The concentration of sodium hydroxide should be controlled during the reaction. If the concentration is high, the reaction will be fast and the side reaction will be few. The quality of carboxymethyl cellulose is determined by the degree of substitution, degree of polymerization, homogeneity and purity. The degree of substitution refers to the average number of carboxymethyl groups contained in each glucose residue of cellulose macromolecules, generally 0.65-0.85; The degree of polymerization is generally 200~1000. The dilute solution of carboxymethyl cellulose has the characteristics of polyelectrolyte.